160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file timcap.c
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* @brief TIMCAP Driver code.
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*
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* @addtogroup TIMCAP
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* @{
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*/
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#include "timcap.h"
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#if HAL_USE_TIMCAP || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief TIMCAP Driver initialization.
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* @note This function is implicitly invoked by @p halInit(), there is
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* no need to explicitly initialize the driver.
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*
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* @init
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*/
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void timcapInit(void) {
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timcap_lld_init();
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}
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/**
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* @brief Initializes the standard part of a @p TIMCAPDriver structure.
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*
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* @param[out] timcapp pointer to the @p TIMCAPDriver object
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*
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* @init
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*/
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void timcapObjectInit(TIMCAPDriver *timcapp) {
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timcapp->state = TIMCAP_STOP;
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timcapp->config = NULL;
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}
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/**
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* @brief Configures and activates the TIMCAP peripheral.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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* @param[in] config pointer to the @p TIMCAPConfig object
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*
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* @api
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*/
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void timcapStart(TIMCAPDriver *timcapp, const TIMCAPConfig *config) {
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osalDbgCheck((timcapp != NULL) && (config != NULL));
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osalSysLock();
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osalDbgAssert((timcapp->state == TIMCAP_STOP) || (timcapp->state == TIMCAP_READY),
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"invalid state");
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timcapp->config = config;
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timcap_lld_start(timcapp);
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timcapp->state = TIMCAP_READY;
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osalSysUnlock();
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}
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/**
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* @brief Deactivates the TIMCAP peripheral.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @api
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*/
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void timcapStop(TIMCAPDriver *timcapp) {
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osalDbgCheck(timcapp != NULL);
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osalSysLock();
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osalDbgAssert((timcapp->state == TIMCAP_STOP) || (timcapp->state == TIMCAP_READY),
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"invalid state");
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timcap_lld_stop(timcapp);
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timcapp->state = TIMCAP_STOP;
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osalSysUnlock();
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}
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/**
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* @brief Enables the input capture.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @api
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*/
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void timcapEnable(TIMCAPDriver *timcapp) {
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osalDbgCheck(timcapp != NULL);
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osalSysLock();
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osalDbgAssert(timcapp->state == TIMCAP_READY, "invalid state");
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timcap_lld_enable(timcapp);
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timcapp->state = TIMCAP_WAITING;
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osalSysUnlock();
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}
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/**
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* @brief Disables the input capture.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @api
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*/
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void timcapDisable(TIMCAPDriver *timcapp) {
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osalDbgCheck(timcapp != NULL);
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osalSysLock();
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osalDbgAssert((timcapp->state == TIMCAP_READY) || (timcapp->state == TIMCAP_WAITING) ||
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(timcapp->state == TIMCAP_ACTIVE) || (timcapp->state == TIMCAP_IDLE),
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"invalid state");
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timcap_lld_disable(timcapp);
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timcapp->state = TIMCAP_READY;
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osalSysUnlock();
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}
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#endif /* HAL_USE_TIMCAP */
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/** @} */
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